Page 18 of 21 Digilance V
26 November 2018
File name:
Digilance V_1.01
Version: 1.01
7 Maintenance
7.1 Procedures for maintenance and repair
If measurement or testing work is to be carried out on an active unit, your national accident prevention rules and
regulations must be observed. Use only suitable electrical tools.
Warning:
•
Repairs may only be carried out by Heraeus Electro-Nite service personnel. For replacement
purposes, use only parts or components contained in the spare parts list or listed in the Spare
Parts. Unauthorized opening of equipment and improper repairs can result in loss of life or
severe personal injury as well as substantial property damage.
•
Do not throw batteries into an open fire and do not solder on batteries (danger of explosion).
•
Only use replacement battery packs supplied by Heraeus Electro-Nite.
7.2 Guidelines for Handling (ESD)
VLSI chips (MOS technology) are used in practically all Heraeus Electro-Nite electronic modules. These VLSI
components are, by their nature, very sensitive to over voltages and thus to electrostatic discharge (ESD).
This pictogram and warning label is used on cabinets, subracks, and packing and suggests that
modules are susceptible to ESD.
Before starting maintenance or installation make sure that you have sufficient protection against
ESD.
Electronic devices can be destroyed by voltage and energy levels that are far below the level perceptible to
human beings. Such voltages can occur when a component or a module is touched by a person who has not
been electrostatically discharged. In most cases, the components subjected to such over voltages, cannot be
immediately detected as faulty; the fault occurs only after a long period in operation.
7.3 Cleaning notes
The instrument can be cleaned with a damp cloth and mild detergent.
7.4 Battery
Warning:
•
Battery should not be replaced. The only allowed replacement is by the one specified in
the
list
7.5 Performing a test measurement with a Checkmate
A Checkmate instrument is used to check the basic function of
Heraeus Electro-Nite instrumentation.
The Digilance the burnout is set to negative, and the Checkmate
should also be set to negative.
When Checkmate Measurements are detected:
•
Heat Number will be stored as 9999999999
•
will be displayed after the Heat Number
More information about the configuration of the Checkmate can be
found in its user manual.
7.6 Calibrating the system
Warning:
•
ONLY AUTHORISED PERSONNEL MAY CALIBRATE THE SYSTEM.
•
The instrument is calibrated prior to delivery.
•
Calibration should be performed yearly.
•
Before calibration, ensure the instrument is acclimatized.
